CURB-65 Score for Pneumonia Severity

Estimates the mortality of community-acquired pneumonia to help determine inpatient vs. outpatient treatment.

CURB-65 Pneumonia Severity Calculator

CURB-65 Pneumonia Severity Calculator

Criterion Question Answer
C – Confusion Is the patient confused?
U – Urea Is the urea > 7 mmol/L?
R – Respiratory Rate Is the respiratory rate ≥ 30/min?
B – Blood Pressure Is the systolic BP < 90 mmHg or diastolic BP ≤ 60 mmHg?
65 – Age Is the age ≥ 65 years?

CURB-65 stands for:

ComponentCriteriaPoints
C – ConfusionNew mental confusion1 point
U – UreaBlood urea nitrogen >7 mmol/L (>20 mg/dL)1 point
R – Respiratory Rate≥30 breaths per minute1 point
B – Blood PressureSystolic <90 mmHg or Diastolic ≤60 mmHg1 point
65 – Age ≥65 years1 point

Scoring and Interpretation:

  • 0–1 points: Low risk → Outpatient treatment may be appropriate
  • 2 points: Moderate risk → Consider hospital admission
  • 3–5 points: High risk → Consider ICU or inpatient care

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